I've created a PrintDocument in C#, I can print it, but now I want to save it to a file. Is it possible to save it as a word document?
Depending on your intent, this might be useful:
If your goal is to reprint it at a later date this will work:
print_doc.PrinterSettings.PrintToFile = true;
print_doc.PrinterSettings.PrintFileName = "backup.prn";